Chapter 2 Review

What is an isotope? 

• A charged atom
• An atom with different amounts of neutrons
• An atom with different amounts of protons
• A neutral atom

Tags

NGSS.HS-PS1-8

Different isotopes have...

• different masses
• different atomic numbers
• different electrons
• different protons

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NGSS.HS-PS1-8

How many neutrons does an Oxygen-19 isotope have?

• 19
• 8
• 11
• 10

Tags

NGSS.MS-PS1-1

What is the atomic mass of the pictured isotope?

• 2
• 4
• 6
• Hehehehe

What is the name of the pictured isotope?

• Carbon-12
• Carbon-13
• Carbon-14
• Carbon-15

How many neutrons does the isotope of lithium have?

• 8
• 3
• 4
• 5

Tags

NGSS.HS-PS1-8

How many neutrons in C-14?

• 6
• 7
• 14
• 8

Tags

NGSS.HS-PS1-8

What is the half-life of iodine-131?

• 32 days
• 8 days
• 16 days
• 24 days

Tags

NGSS.HS-PS1-8

If a fossil is found to have one-eighth of Carbon-14 remaining then how old is the fossil?

• 11,460 years
• 5,730 years
• 28,650 years
• 17,190 years

Tags

NGSS.HS-PS1-8

What percent of carbon-14 would be left after 5730 years?

• 100%
• 75%
• 50%
• 25%

Tags

NGSS.HS-PS1-8